>>> if X>Y:  
...  X,Y = 3,4  
...   print X,Y  
  File "<stdin>", line 3  
    print X,Y  
    ^  
IndentationError: unexpected indent  
  
  
>>>   t = (1,2,3,4)  
  File "<stdin>", line 1  
    t = (1,2,3,4)  
    ^  
IndentationError: unexpected indent